Blockchain transactions need time to settle — around 30 minutes for BTC, 5–10 minutes for other assets.
If it’s taken longer than that, contact support with the transaction ID, trackable on a blockchain explorer.
This usually happens because you haven’t activated the wallet for the asset you want to receive.
Yes, as long as that asset is available on Pintu. Make sure you send to the wallet address matching the one shown in Pintu — sending to the wrong address can permanently lose the asset.